11. What must be subtracted from a 4a2 + 50 - 6 to obtain a2 - 2a +1?
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1
Answer:
Let,
p=a
3
−4a
2
+5a−6
q=3a
3
+a
2
+1
r=a
2
−2
According to the question,
⇒3a
3
+a
2
+1+a
2
−2−(a
3
−4a
2
+5a−6)
⇒3a
3
+2a
2
−1−a
3
+4a
2
−5a+6
⇒2a
3
+6a
2
−5a+5
Hence, this is the answer.
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